Speaking-tube for ships



l S. NEAL. Speaking Tube for Ships.

Patented March 15, 1859.

Inventor:

Witnesses.-

UNITED STATES PATENT OFFICE.

DAVID S. NEAL, OF LYNN, Mi-XSSAUHUSIJTTS.

SPEAKING-TUBE FOR SHIPS.

Specification of Letters Patent No. 23,261, dated March 15, 1859.

To all whom it may concern:

Be it known that I, DAVID S. NEAL, of Lynn, in the county of Essex, and State of Massachusetts, have invented a new and very useful instrument called by me a speaking tube, to be kept on board of vessels for the purpose of being used by a shipwrecked crew or passengers for holding communication with people upon the land when within a few hundred feet of the shore; and I do hereby declare that the following is a full and exact description thereof, reference be ing had to the accompanying drawings" and to the letters of reference inarked thereon.

Figure 1 D, D, a gutta percha or rubber tube A. A, month piece at each end, to be used when unscrewed near keg B, which is used as a float to carry the tube attached on shore, C brass coupling to screw the tube together and lengthening to any required distance, c, c, horns to unscrew and screw together, the keg B, to have printed upon it, Please unscrew the keg from the mouth piece and converse with us. Fig. 2, B keg unscrewed from the mouth piece A, e, c, horns. Fig. 3, a mouth piece detached from tube D. D, and unscrewed from pipe in keg B. Fig. i f, 0, coupling to tube D, D, unscrewed c, c. horns for unscrewing.

Having fully described my invention, I wish it distinctly understood that I do not claim inventing a tube, or, an iron copper or brass bound keg; but

What I claim and desire to secure by Letters Patent, is-

The arrangement of the speaking tube, with a cask or equivalent float, substantially as and for the purpose specified.

DAVID S. NEAL. Vitnesses:

THOMAS Hinznicn'r,

I. C. STICKNEY. 

